CN203168940U - Multi-function thermos flask cap - Google Patents

Abstract

The utility model relates to a thermos flask cap, in particular to a multi-function thermos flask cap capable of keeping the intensity of pressure inside and outside a thermos flask balanced. The multi-function thermos flask cap comprises a cap body, and is characterized in that a cross through hole is formed in the center of the cap body, the hardness of the edge of the cross through hole is smaller than that of the cap body, the center of the cross through hole bends inwards, and a reinforcing block is arranged on the outer side of the cross through hole. The multi-function thermos flask cap has the advantages that after hot water is filled in the thermos flask, the cross through hole can automatically open and close to keep the intensity of pressure inside and outside the thermos flask balanced according to changes of the intensity of pressure inside and outside the thermos flask, is simple in structure, practical and convenient to use, and brings great convenience to the daily life of people.

Description

A kind of multi-functional thermos flask lid

(1) technical field

The utility model relates to a kind of thermos flask lid, particularly a kind of inside and outside multi-functional thermos flask lid that keeps pressure equilibrium constantly of thermos flask that makes.

(2) background technology

In the daily life, we usually find: many classmates do not open the cooling of thermos flask lid after having played boiling water with thermos flask, will find after overnight that thermos flask is flat, and the thermos flask lid is difficult to open because internal pressure is too small, if we firmly drag outward also and might cause danger, brought greatly inconvenience also for our daily life.

(3) summary of the invention

The utility model provides a kind of simple in structure, practical and convenient multi-functional thermos flask lid in order to remedy the deficiencies in the prior art.

The utility model is achieved by the following technical solution:

A kind of multi-functional thermos flask lid, comprise lid, it is characterized in that: described lid center offers cross through hole, and the hardness at cross through hole edge is less than the hardness of lid, cross through hole centre curves inwardly, and cross through hole arranged outside has reinforcement block.

The beneficial effects of the utility model are: after filling hot water in the thermos flask, cross through hole can be according to the automatic opening and closing of pressure change inside and outside the bottle to guarantee the balance of the inside and outside pressure of bottle; Simple in structure, practical and convenient, for our daily life brought greatly convenient.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Accompanying drawing 1 is plan structure schematic diagram of the present utility model;

Accompanying drawing 2 is side-looking structural representation of the present utility model;

Among the figure, 1 lid, 2 cross through holes, 3 reinforcement blocks.

(5) specific embodiment

Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises lid 1, and lid 1 center offers cross through hole 2, and the hardness at cross through hole 2 edges is less than the hardness of lid 1, and cross through hole 2 centres curve inwardly, and cross through hole 2 arranged outside have reinforcement block 3.

Adopt a kind of multi-functional thermos flask lid of the present utility model, the material of lid 1 adopt elasticity better, toughness a kind of glue preferably, make the bottle internal pressure too little and when air-breathing, cross through hole 2 is crack, makes bottle internal pressure and the external world reach balance.The toughness of lid 1 is better; water in the bottle is not leaked; when no air passes through; cross through hole 2 is closed, even and the bottle reversing, the water in the bottle is given 1 one outside pressure of lid; because cross through hole 2 centers are crooked in the bottle; moreover the 2 outer protections that reinforcement block 3 is arranged again of cross through hole, the pressure of water only can allow cross through hole 2 tighter, can not leak.So this multi-functional thermos flask covers when the bottle internal pressure reduces because of variations in temperature, can draw outside air automatically, and make bottle inside and outside pressure reach balance.

Claims (1)

1. a multi-functional thermos flask covers, comprise lid (1), it is characterized in that: described lid (1) center offers cross through hole (2), the hardness at cross through hole (2) edge is less than the hardness of lid (1), cross through hole (2) centre curves inwardly, and cross through hole (2) arranged outside has reinforcement block (3).

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